---
_id: '10834'
abstract:
- lang: eng
text: Hematopoietic-specific protein 1 (Hem1) is an essential subunit of the WAVE
regulatory complex (WRC) in immune cells. WRC is crucial for Arp2/3 complex activation
and the protrusion of branched actin filament networks. Moreover, Hem1 loss of
function in immune cells causes autoimmune diseases in humans. Here, we show that
genetic removal of Hem1 in macrophages diminishes frequency and efficacy of phagocytosis
as well as phagocytic cup formation in addition to defects in lamellipodial protrusion
and migration. Moreover, Hem1-null macrophages displayed strong defects in cell
adhesion despite unaltered podosome formation and concomitant extracellular matrix
degradation. Specifically, dynamics of both adhesion and de-adhesion as well as
concomitant phosphorylation of paxillin and focal adhesion kinase (FAK) were significantly
compromised. Accordingly, disruption of WRC function in non-hematopoietic cells
coincided with both defects in adhesion turnover and altered FAK and paxillin
phosphorylation. Consistently, platelets exhibited reduced adhesion and diminished
integrin αIIbβ3 activation upon WRC removal. Interestingly, adhesion phenotypes,
but not lamellipodia formation, were partially rescued by small molecule activation
of FAK. A full rescue of the phenotype, including lamellipodia formation, required
not only the presence of WRCs but also their binding to and activation by Rac.
Collectively, our results uncover that WRC impacts on integrin-dependent processes
in a FAK-dependent manner, controlling formation and dismantling of adhesions,
relevant for properly grabbing onto extracellular surfaces and particles during
cell edge expansion, like in migration or phagocytosis.
acknowledgement: We are grateful to Silvia Prettin, Ina Schleicher, and Petra Hagendorff
for expert technical assistance; David Dettbarn for animal keeping and breeding;
and Lothar Gröbe and Maria Höxter for cell sorting. We also thank Werner Tegge for
peptides and Giorgio Scita for antibodies. This work was supported, in part, by
the Deutsche Forschungsgemeinschaft (DFG), Priority Programm SPP1150 (to T.E.B.S.,
K.R., and M. Sixt), and by DFG grant GRK2223/1 (to K.R.). T.E.B.S. acknowledges
support by the Helmholtz Society through HGF impulse fund W2/W3-066 and M. Schnoor
by the Mexican Council for Science and Technology (CONACyT, 284292 ), Fund SEP-Cinvestav
( 108 ), and the Royal Society, UK (Newton Advanced Fellowship, NAF/R1/180017 ).
article_processing_charge: No
article_type: original
author:
- first_name: Stephanie
full_name: Stahnke, Stephanie
last_name: Stahnke
- first_name: Hermann
full_name: Döring, Hermann
last_name: Döring
- first_name: Charly
full_name: Kusch, Charly
last_name: Kusch
- first_name: David J.J.
full_name: de Gorter, David J.J.
last_name: de Gorter
- first_name: Sebastian
full_name: Dütting, Sebastian
last_name: Dütting
- first_name: Aleks
full_name: Guledani, Aleks
last_name: Guledani
- first_name: Irina
full_name: Pleines, Irina
last_name: Pleines
- first_name: Michael
full_name: Schnoor, Michael
last_name: Schnoor
- first_name: Michael K
full_name: Sixt, Michael K
id: 41E9FBEA-F248-11E8-B48F-1D18A9856A87
last_name: Sixt
orcid: 0000-0002-6620-9179
- first_name: Robert
full_name: Geffers, Robert
last_name: Geffers
- first_name: Manfred
full_name: Rohde, Manfred
last_name: Rohde
- first_name: Mathias
full_name: Müsken, Mathias
last_name: Müsken
- first_name: Frieda
full_name: Kage, Frieda
last_name: Kage
- first_name: Anika
full_name: Steffen, Anika
last_name: Steffen
- first_name: Jan
full_name: Faix, Jan
last_name: Faix
- first_name: Bernhard
full_name: Nieswandt, Bernhard
last_name: Nieswandt
- first_name: Klemens
full_name: Rottner, Klemens
last_name: Rottner
- first_name: Theresia E.B.
full_name: Stradal, Theresia E.B.
last_name: Stradal
citation:
ama: Stahnke S, Döring H, Kusch C, et al. Loss of Hem1 disrupts macrophage function
and impacts migration, phagocytosis, and integrin-mediated adhesion. Current
Biology. 2021;31(10):2051-2064.e8. doi:10.1016/j.cub.2021.02.043
apa: Stahnke, S., Döring, H., Kusch, C., de Gorter, D. J. J., Dütting, S., Guledani,
A., … Stradal, T. E. B. (2021). Loss of Hem1 disrupts macrophage function and
impacts migration, phagocytosis, and integrin-mediated adhesion. Current Biology.
Elsevier. https://doi.org/10.1016/j.cub.2021.02.043
chicago: Stahnke, Stephanie, Hermann Döring, Charly Kusch, David J.J. de Gorter,
Sebastian Dütting, Aleks Guledani, Irina Pleines, et al. “Loss of Hem1 Disrupts
Macrophage Function and Impacts Migration, Phagocytosis, and Integrin-Mediated
Adhesion.” Current Biology. Elsevier, 2021. https://doi.org/10.1016/j.cub.2021.02.043.
ieee: S. Stahnke et al., “Loss of Hem1 disrupts macrophage function and impacts
migration, phagocytosis, and integrin-mediated adhesion,” Current Biology,
vol. 31, no. 10. Elsevier, p. 2051–2064.e8, 2021.
ista: Stahnke S, Döring H, Kusch C, de Gorter DJJ, Dütting S, Guledani A, Pleines
I, Schnoor M, Sixt MK, Geffers R, Rohde M, Müsken M, Kage F, Steffen A, Faix J,
Nieswandt B, Rottner K, Stradal TEB. 2021. Loss of Hem1 disrupts macrophage function
and impacts migration, phagocytosis, and integrin-mediated adhesion. Current Biology.
31(10), 2051–2064.e8.
mla: Stahnke, Stephanie, et al. “Loss of Hem1 Disrupts Macrophage Function and Impacts
Migration, Phagocytosis, and Integrin-Mediated Adhesion.” Current Biology,
vol. 31, no. 10, Elsevier, 2021, p. 2051–2064.e8, doi:10.1016/j.cub.2021.02.043.
short: S. Stahnke, H. Döring, C. Kusch, D.J.J. de Gorter, S. Dütting, A. Guledani,
I. Pleines, M. Schnoor, M.K. Sixt, R. Geffers, M. Rohde, M. Müsken, F. Kage, A.
Steffen, J. Faix, B. Nieswandt, K. Rottner, T.E.B. Stradal, Current Biology 31
(2021) 2051–2064.e8.
date_created: 2022-03-08T07:51:04Z
date_published: 2021-05-24T00:00:00Z
date_updated: 2023-08-17T07:01:14Z
day: '24'
department:
- _id: MiSi
doi: 10.1016/j.cub.2021.02.043
external_id:
isi:
- '000654652200002'
pmid:
- '33711252'
intvolume: ' 31'
isi: 1
issue: '10'
keyword:
- General Agricultural and Biological Sciences
- General Biochemistry
- Genetics and Molecular Biology
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1101/2020.03.24.005835
month: '05'
oa: 1
oa_version: Preprint
page: 2051-2064.e8
pmid: 1
publication: Current Biology
publication_identifier:
issn:
- 0960-9822
publication_status: published
publisher: Elsevier
quality_controlled: '1'
scopus_import: '1'
status: public
title: Loss of Hem1 disrupts macrophage function and impacts migration, phagocytosis,
and integrin-mediated adhesion
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 31
year: '2021'
...
---
_id: '9935'
abstract:
- lang: eng
text: "We present a deterministic O(log log log n)-round low-space Massively Parallel
Computation (MPC) algorithm for the classical problem of (Δ+1)-coloring on n-vertex
graphs. In this model, every machine has sublinear local space of size n^φ for
any arbitrary constant φ \\in (0,1). Our algorithm works under the relaxed setting
where each machine is allowed to perform exponential local computations, while
respecting the n^φ space and bandwidth limitations.\r\n\r\nOur key technical contribution
is a novel derandomization of the ingenious (Δ+1)-coloring local algorithm by
Chang-Li-Pettie (STOC 2018, SIAM J. Comput. 2020). The Chang-Li-Pettie algorithm
runs in T_local =poly(loglog n) rounds, which sets the state-of-the-art randomized
round complexity for the problem in the local model. Our derandomization employs
a combination of tools, notably pseudorandom generators (PRG) and bounded-independence
hash functions.\r\n\r\nThe achieved round complexity of O(logloglog n) rounds
matches the bound of log(T_local ), which currently serves an upper bound barrier
for all known randomized algorithms for locally-checkable problems in this model.
Furthermore, no deterministic sublogarithmic low-space MPC algorithms for the
(Δ+1)-coloring problem have been known before."
acknowledgement: This work is partially supported by a Weizmann-UK Making Connections
Grant, the Centre for Discrete Mathematics and its Applications (DIMAP), IBM Faculty
Award, EPSRC award EP/V01305X/1, European Research Council (ERC) Grant No. 949083,
the Minerva foundation with funding from the Federal German Ministry for Education
and Research No. 713238, and the European Union’s Horizon 2020 programme under the
Marie Skłodowska-Curie grant agreement No 754411.
article_processing_charge: No
author:
- first_name: Artur
full_name: Czumaj, Artur
last_name: Czumaj
- first_name: Peter
full_name: Davies, Peter
id: 11396234-BB50-11E9-B24C-90FCE5697425
last_name: Davies
orcid: 0000-0002-5646-9524
- first_name: Merav
full_name: Parter, Merav
last_name: Parter
citation:
ama: 'Czumaj A, Davies P, Parter M. Improved deterministic (Δ+1) coloring in low-space
MPC. In: Proceedings of the 2021 ACM Symposium on Principles of Distributed
Computing. Association for Computing Machinery; 2021:469–479. doi:10.1145/3465084.3467937'
apa: 'Czumaj, A., Davies, P., & Parter, M. (2021). Improved deterministic (Δ+1)
coloring in low-space MPC. In Proceedings of the 2021 ACM Symposium on Principles
of Distributed Computing (pp. 469–479). Virtual, Italy: Association for Computing
Machinery. https://doi.org/10.1145/3465084.3467937'
chicago: Czumaj, Artur, Peter Davies, and Merav Parter. “Improved Deterministic
(Δ+1) Coloring in Low-Space MPC.” In Proceedings of the 2021 ACM Symposium
on Principles of Distributed Computing, 469–479. Association for Computing
Machinery, 2021. https://doi.org/10.1145/3465084.3467937.
ieee: A. Czumaj, P. Davies, and M. Parter, “Improved deterministic (Δ+1) coloring
in low-space MPC,” in Proceedings of the 2021 ACM Symposium on Principles of
Distributed Computing, Virtual, Italy, 2021, pp. 469–479.
ista: 'Czumaj A, Davies P, Parter M. 2021. Improved deterministic (Δ+1) coloring
in low-space MPC. Proceedings of the 2021 ACM Symposium on Principles of Distributed
Computing. PODC: Symposium on Principles of Distributed Computing, 469–479.'
mla: Czumaj, Artur, et al. “Improved Deterministic (Δ+1) Coloring in Low-Space MPC.”
Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing,
Association for Computing Machinery, 2021, pp. 469–479, doi:10.1145/3465084.3467937.
short: A. Czumaj, P. Davies, M. Parter, in:, Proceedings of the 2021 ACM Symposium
on Principles of Distributed Computing, Association for Computing Machinery, 2021,
pp. 469–479.
conference:
end_date: 2021-07-30
location: Virtual, Italy
name: 'PODC: Symposium on Principles of Distributed Computing'
start_date: 2021-07-26
date_created: 2021-08-17T18:14:15Z
date_published: 2021-07-21T00:00:00Z
date_updated: 2023-08-17T07:11:03Z
day: '21'
department:
- _id: DaAl
doi: 10.1145/3465084.3467937
ec_funded: 1
external_id:
isi:
- '000744439800048'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: http://wrap.warwick.ac.uk/153753
month: '07'
oa: 1
oa_version: Submitted Version
page: 469–479
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing
publication_identifier:
isbn:
- 978-1-4503-8548-0
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
status: public
title: Improved deterministic (Δ+1) coloring in low-space MPC
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '10856'
abstract:
- lang: eng
text: "We study the properties of the maximal volume k-dimensional sections of the
n-dimensional cube [−1, 1]n. We obtain a first order necessary condition for a
k-dimensional subspace to be a local maximizer of the volume of such sections,
which we formulate in a geometric way. We estimate the length of the projection
of a vector of the standard basis of Rn onto a k-dimensional subspace that maximizes
the volume of the intersection. We \x1Cnd the optimal upper bound on the volume
of a planar section of the cube [−1, 1]n , n ≥ 2."
acknowledgement: "The authors acknowledge the support of the grant of the Russian
Government N 075-15-\r\n2019-1926. G.I.was supported also by the SwissNational Science
Foundation grant 200021-179133. The authors are very grateful to the anonymous reviewer
for valuable remarks."
article_processing_charge: No
article_type: original
author:
- first_name: Grigory
full_name: Ivanov, Grigory
id: 87744F66-5C6F-11EA-AFE0-D16B3DDC885E
last_name: Ivanov
- first_name: Igor
full_name: Tsiutsiurupa, Igor
last_name: Tsiutsiurupa
citation:
ama: Ivanov G, Tsiutsiurupa I. On the volume of sections of the cube. Analysis
and Geometry in Metric Spaces. 2021;9(1):1-18. doi:10.1515/agms-2020-0103
apa: Ivanov, G., & Tsiutsiurupa, I. (2021). On the volume of sections of the
cube. Analysis and Geometry in Metric Spaces. De Gruyter. https://doi.org/10.1515/agms-2020-0103
chicago: Ivanov, Grigory, and Igor Tsiutsiurupa. “On the Volume of Sections of the
Cube.” Analysis and Geometry in Metric Spaces. De Gruyter, 2021. https://doi.org/10.1515/agms-2020-0103.
ieee: G. Ivanov and I. Tsiutsiurupa, “On the volume of sections of the cube,” Analysis
and Geometry in Metric Spaces, vol. 9, no. 1. De Gruyter, pp. 1–18, 2021.
ista: Ivanov G, Tsiutsiurupa I. 2021. On the volume of sections of the cube. Analysis
and Geometry in Metric Spaces. 9(1), 1–18.
mla: Ivanov, Grigory, and Igor Tsiutsiurupa. “On the Volume of Sections of the Cube.”
Analysis and Geometry in Metric Spaces, vol. 9, no. 1, De Gruyter, 2021,
pp. 1–18, doi:10.1515/agms-2020-0103.
short: G. Ivanov, I. Tsiutsiurupa, Analysis and Geometry in Metric Spaces 9 (2021)
1–18.
date_created: 2022-03-18T09:25:14Z
date_published: 2021-01-29T00:00:00Z
date_updated: 2023-08-17T07:07:58Z
day: '29'
ddc:
- '510'
department:
- _id: UlWa
doi: 10.1515/agms-2020-0103
external_id:
arxiv:
- '2004.02674'
isi:
- '000734286800001'
file:
- access_level: open_access
checksum: 7e615ac8489f5eae580b6517debfdc53
content_type: application/pdf
creator: dernst
date_created: 2022-03-18T09:31:59Z
date_updated: 2022-03-18T09:31:59Z
file_id: '10857'
file_name: 2021_AnalysisMetricSpaces_Ivanov.pdf
file_size: 789801
relation: main_file
success: 1
file_date_updated: 2022-03-18T09:31:59Z
has_accepted_license: '1'
intvolume: ' 9'
isi: 1
issue: '1'
keyword:
- Applied Mathematics
- Geometry and Topology
- Analysis
language:
- iso: eng
month: '01'
oa: 1
oa_version: Published Version
page: 1-18
publication: Analysis and Geometry in Metric Spaces
publication_identifier:
issn:
- 2299-3274
publication_status: published
publisher: De Gruyter
quality_controlled: '1'
scopus_import: '1'
status: public
title: On the volume of sections of the cube
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 9
year: '2021'
...
---
_id: '9933'
abstract:
- lang: eng
text: "In this paper, we study the power and limitations of component-stable algorithms
in the low-space model of Massively Parallel Computation (MPC). Recently Ghaffari,
Kuhn and Uitto (FOCS 2019) introduced the class of component-stable low-space
MPC algorithms, which are, informally, defined as algorithms for which the outputs
reported by the nodes in different connected components are required to be independent.
This very natural notion was introduced to capture most (if not all) of the known
efficient MPC algorithms to date, and it was the first general class of MPC algorithms
for which one can show non-trivial conditional lower bounds. In this paper we
enhance the framework of component-stable algorithms and investigate its effect
on the complexity of randomized and deterministic low-space MPC. Our key contributions
include: 1) We revise and formalize the lifting approach of Ghaffari, Kuhn and
Uitto. This requires a very delicate amendment of the notion of component stability,
which allows us to fill in gaps in the earlier arguments. 2) We also extend the
framework to obtain conditional lower bounds for deterministic algorithms and
fine-grained lower bounds that depend on the maximum degree Δ. 3) We demonstrate
a collection of natural graph problems for which non-component-stable algorithms
break the conditional lower bound obtained for component-stable algorithms. This
implies that, for both deterministic and randomized algorithms, component-stable
algorithms are conditionally weaker than the non-component-stable ones.\r\n\r\nAltogether
our results imply that component-stability might limit the computational power
of the low-space MPC model, paving the way for improved upper bounds that escape
the conditional lower bound setting of Ghaffari, Kuhn, and Uitto."
acknowledgement: This work is partially supported by a Weizmann-UK Making Connections
Grant, the Centre for Discrete Mathematics and its Applications (DIMAP), IBM Faculty
Award, EPSRC award EP/V01305X/1, European Research Council (ERC) Grant No. 949083,
the Minerva foundation with funding from the Federal German Ministry for Education
and Research No. 713238, and the European Union’s Horizon 2020 programme under the
Marie Skłodowska-Curie grant agreement No 754411.
article_processing_charge: No
author:
- first_name: Artur
full_name: Czumaj, Artur
last_name: Czumaj
- first_name: Peter
full_name: Davies, Peter
id: 11396234-BB50-11E9-B24C-90FCE5697425
last_name: Davies
orcid: 0000-0002-5646-9524
- first_name: Merav
full_name: Parter, Merav
last_name: Parter
citation:
ama: 'Czumaj A, Davies P, Parter M. Component stability in low-space massively parallel
computation. In: Proceedings of the 2021 ACM Symposium on Principles of Distributed
Computing. Association for Computing Machinery; 2021:481–491. doi:10.1145/3465084.3467903'
apa: 'Czumaj, A., Davies, P., & Parter, M. (2021). Component stability in low-space
massively parallel computation. In Proceedings of the 2021 ACM Symposium on
Principles of Distributed Computing (pp. 481–491). Virtual, Italy: Association
for Computing Machinery. https://doi.org/10.1145/3465084.3467903'
chicago: Czumaj, Artur, Peter Davies, and Merav Parter. “Component Stability in
Low-Space Massively Parallel Computation.” In Proceedings of the 2021 ACM Symposium
on Principles of Distributed Computing, 481–491. Association for Computing
Machinery, 2021. https://doi.org/10.1145/3465084.3467903.
ieee: A. Czumaj, P. Davies, and M. Parter, “Component stability in low-space massively
parallel computation,” in Proceedings of the 2021 ACM Symposium on Principles
of Distributed Computing, Virtual, Italy, 2021, pp. 481–491.
ista: 'Czumaj A, Davies P, Parter M. 2021. Component stability in low-space massively
parallel computation. Proceedings of the 2021 ACM Symposium on Principles of Distributed
Computing. PODC: Principles of Distributed Computing, 481–491.'
mla: Czumaj, Artur, et al. “Component Stability in Low-Space Massively Parallel
Computation.” Proceedings of the 2021 ACM Symposium on Principles of Distributed
Computing, Association for Computing Machinery, 2021, pp. 481–491, doi:10.1145/3465084.3467903.
short: A. Czumaj, P. Davies, M. Parter, in:, Proceedings of the 2021 ACM Symposium
on Principles of Distributed Computing, Association for Computing Machinery, 2021,
pp. 481–491.
conference:
end_date: 2021-07-30
location: Virtual, Italy
name: 'PODC: Principles of Distributed Computing'
start_date: 2021-07-26
date_created: 2021-08-17T18:11:16Z
date_published: 2021-07-21T00:00:00Z
date_updated: 2023-08-17T07:11:32Z
day: '21'
department:
- _id: DaAl
doi: 10.1145/3465084.3467903
ec_funded: 1
external_id:
arxiv:
- '2106.01880'
isi:
- '000744439800049'
isi: 1
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2106.01880
month: '07'
oa: 1
oa_version: Submitted Version
page: 481–491
project:
- _id: 260C2330-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '754411'
name: ISTplus - Postdoctoral Fellowships
publication: Proceedings of the 2021 ACM Symposium on Principles of Distributed Computing
publication_identifier:
isbn:
- '9781450385480'
publication_status: published
publisher: Association for Computing Machinery
quality_controlled: '1'
status: public
title: Component stability in low-space massively parallel computation
type: conference
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
year: '2021'
...
---
_id: '9627'
abstract:
- lang: eng
text: "We compute the deficiency spaces of operators of the form \U0001D43B\U0001D434⊗̂
\U0001D43C+\U0001D43C⊗̂ \U0001D43B\U0001D435, for symmetric \U0001D43B\U0001D434
and self-adjoint \U0001D43B\U0001D435. This enables us to construct self-adjoint
extensions (if they exist) by means of von Neumann's theory. The structure of
the deficiency spaces for this case was asserted already in Ibort et al. [Boundary
dynamics driven entanglement, J. Phys. A: Math. Theor. 47(38) (2014) 385301],
but only proven under the restriction of \U0001D43B\U0001D435 having discrete,
non-degenerate spectrum."
acknowledgement: M. W. gratefully acknowledges financial support by the German Academic
Scholarship Foundation (Studienstiftung des deutschen Volkes). T.W. thanks PAO Gazprom
Neft, the Euler International Mathematical Institute in Saint Petersburg and ORISA
GmbH for their financial support in the form of scholarships during his Master's
and Bachelor's studies respectively. The authors want to thank Mark Malamud for
pointing out the reference [1] to them. This work was supported by the Ministry
of Science and Higher Education of the Russian Federation, agreement No 075-15-2019-1619.
article_processing_charge: No
article_type: original
author:
- first_name: Daniel
full_name: Lenz, Daniel
last_name: Lenz
- first_name: Timon
full_name: Weinmann, Timon
last_name: Weinmann
- first_name: Melchior
full_name: Wirth, Melchior
id: 88644358-0A0E-11EA-8FA5-49A33DDC885E
last_name: Wirth
orcid: 0000-0002-0519-4241
citation:
ama: Lenz D, Weinmann T, Wirth M. Self-adjoint extensions of bipartite Hamiltonians.
Proceedings of the Edinburgh Mathematical Society. 2021;64(3):443-447.
doi:10.1017/S0013091521000080
apa: Lenz, D., Weinmann, T., & Wirth, M. (2021). Self-adjoint extensions of
bipartite Hamiltonians. Proceedings of the Edinburgh Mathematical Society.
Cambridge University Press. https://doi.org/10.1017/S0013091521000080
chicago: Lenz, Daniel, Timon Weinmann, and Melchior Wirth. “Self-Adjoint Extensions
of Bipartite Hamiltonians.” Proceedings of the Edinburgh Mathematical Society.
Cambridge University Press, 2021. https://doi.org/10.1017/S0013091521000080.
ieee: D. Lenz, T. Weinmann, and M. Wirth, “Self-adjoint extensions of bipartite
Hamiltonians,” Proceedings of the Edinburgh Mathematical Society, vol.
64, no. 3. Cambridge University Press, pp. 443–447, 2021.
ista: Lenz D, Weinmann T, Wirth M. 2021. Self-adjoint extensions of bipartite Hamiltonians.
Proceedings of the Edinburgh Mathematical Society. 64(3), 443–447.
mla: Lenz, Daniel, et al. “Self-Adjoint Extensions of Bipartite Hamiltonians.” Proceedings
of the Edinburgh Mathematical Society, vol. 64, no. 3, Cambridge University
Press, 2021, pp. 443–47, doi:10.1017/S0013091521000080.
short: D. Lenz, T. Weinmann, M. Wirth, Proceedings of the Edinburgh Mathematical
Society 64 (2021) 443–447.
date_created: 2021-07-04T22:01:24Z
date_published: 2021-08-01T00:00:00Z
date_updated: 2023-08-17T07:12:05Z
day: '01'
department:
- _id: JaMa
doi: 10.1017/S0013091521000080
external_id:
arxiv:
- '1912.03670'
isi:
- '000721363700003'
intvolume: ' 64'
isi: 1
issue: '3'
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.1017/S0013091521000080
month: '08'
oa: 1
oa_version: Published Version
page: 443-447
publication: Proceedings of the Edinburgh Mathematical Society
publication_identifier:
eissn:
- 1464-3839
issn:
- 0013-0915
publication_status: published
publisher: Cambridge University Press
quality_controlled: '1'
scopus_import: '1'
status: public
title: Self-adjoint extensions of bipartite Hamiltonians
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 64
year: '2021'
...
---
_id: '7901'
abstract:
- lang: eng
text: We derive rigorously the leading order of the correlation energy of a Fermi
gas in a scaling regime of high density and weak interaction. The result verifies
the prediction of the random-phase approximation. Our proof refines the method
of collective bosonization in three dimensions. We approximately diagonalize an
effective Hamiltonian describing approximately bosonic collective excitations
around the Hartree–Fock state, while showing that gapless and non-collective excitations
have only a negligible effect on the ground state energy.
acknowledgement: We thank Christian Hainzl for helpful discussions and a referee for
very careful reading of the paper and many helpful suggestions. NB and RS were supported
by the European Research Council (ERC) under the European Union’s Horizon 2020 research
and innovation programme (grant agreement No. 694227). Part of the research of NB
was conducted on the RZD18 Nice–Milan–Vienna–Moscow. NB thanks Elliott H. Lieb and
Peter Otte for explanations about the Luttinger model. PTN has received funding
from the Deutsche Forschungsgemeinschaft (DFG, German Research Foundation) under
Germany’s Excellence Strategy (EXC-2111-390814868). MP acknowledges financial support
from the European Research Council (ERC) under the European Union’s Horizon 2020
research and innovation programme (ERC StG MaMBoQ, grant agreement No. 802901).
BS gratefully acknowledges financial support from the NCCR SwissMAP, from the Swiss
National Science Foundation through the Grant “Dynamical and energetic properties
of Bose-Einstein condensates” and from the European Research Council through the
ERC-AdG CLaQS (grant agreement No. 834782). All authors acknowledge support for
workshop participation from Mathematisches Forschungsinstitut Oberwolfach (Leibniz
Association). NB, PTN, BS, and RS acknowledge support for workshop participation
from Fondation des Treilles.
article_processing_charge: Yes (via OA deal)
article_type: original
author:
- first_name: Niels P
full_name: Benedikter, Niels P
id: 3DE6C32A-F248-11E8-B48F-1D18A9856A87
last_name: Benedikter
orcid: 0000-0002-1071-6091
- first_name: Phan Thành
full_name: Nam, Phan Thành
last_name: Nam
- first_name: Marcello
full_name: Porta, Marcello
last_name: Porta
- first_name: Benjamin
full_name: Schlein, Benjamin
last_name: Schlein
- first_name: Robert
full_name: Seiringer, Robert
id: 4AFD0470-F248-11E8-B48F-1D18A9856A87
last_name: Seiringer
orcid: 0000-0002-6781-0521
citation:
ama: Benedikter NP, Nam PT, Porta M, Schlein B, Seiringer R. Correlation energy
of a weakly interacting Fermi gas. Inventiones Mathematicae. 2021;225:885-979.
doi:10.1007/s00222-021-01041-5
apa: Benedikter, N. P., Nam, P. T., Porta, M., Schlein, B., & Seiringer, R.
(2021). Correlation energy of a weakly interacting Fermi gas. Inventiones Mathematicae.
Springer. https://doi.org/10.1007/s00222-021-01041-5
chicago: Benedikter, Niels P, Phan Thành Nam, Marcello Porta, Benjamin Schlein,
and Robert Seiringer. “Correlation Energy of a Weakly Interacting Fermi Gas.”
Inventiones Mathematicae. Springer, 2021. https://doi.org/10.1007/s00222-021-01041-5.
ieee: N. P. Benedikter, P. T. Nam, M. Porta, B. Schlein, and R. Seiringer, “Correlation
energy of a weakly interacting Fermi gas,” Inventiones Mathematicae, vol.
225. Springer, pp. 885–979, 2021.
ista: Benedikter NP, Nam PT, Porta M, Schlein B, Seiringer R. 2021. Correlation
energy of a weakly interacting Fermi gas. Inventiones Mathematicae. 225, 885–979.
mla: Benedikter, Niels P., et al. “Correlation Energy of a Weakly Interacting Fermi
Gas.” Inventiones Mathematicae, vol. 225, Springer, 2021, pp. 885–979,
doi:10.1007/s00222-021-01041-5.
short: N.P. Benedikter, P.T. Nam, M. Porta, B. Schlein, R. Seiringer, Inventiones
Mathematicae 225 (2021) 885–979.
date_created: 2020-05-28T16:48:20Z
date_published: 2021-05-03T00:00:00Z
date_updated: 2023-08-21T06:30:30Z
day: '03'
ddc:
- '510'
department:
- _id: RoSe
doi: 10.1007/s00222-021-01041-5
ec_funded: 1
external_id:
arxiv:
- '2005.08933'
isi:
- '000646573600001'
file:
- access_level: open_access
checksum: f38c79dfd828cdc7f49a34b37b83d376
content_type: application/pdf
creator: dernst
date_created: 2022-05-16T12:23:40Z
date_updated: 2022-05-16T12:23:40Z
file_id: '11386'
file_name: 2021_InventMath_Benedikter.pdf
file_size: 1089319
relation: main_file
success: 1
file_date_updated: 2022-05-16T12:23:40Z
has_accepted_license: '1'
intvolume: ' 225'
isi: 1
language:
- iso: eng
month: '05'
oa: 1
oa_version: Published Version
page: 885-979
project:
- _id: B67AFEDC-15C9-11EA-A837-991A96BB2854
name: IST Austria Open Access Fund
- _id: 25C6DC12-B435-11E9-9278-68D0E5697425
call_identifier: H2020
grant_number: '694227'
name: Analysis of quantum many-body systems
publication: Inventiones Mathematicae
publication_identifier:
eissn:
- 1432-1297
issn:
- 0020-9910
publication_status: published
publisher: Springer
quality_controlled: '1'
scopus_import: '1'
status: public
title: Correlation energy of a weakly interacting Fermi gas
tmp:
image: /images/cc_by.png
legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
short: CC BY (4.0)
type: journal_article
user_id: 4359f0d1-fa6c-11eb-b949-802e58b17ae8
volume: 225
year: '2021'
...
---
_id: '13456'
abstract:
- lang: eng
text: While most simulations of the epoch of reionization have focused on single-stellar
populations in star-forming dwarf galaxies, products of binary evolution are expected
to significantly contribute to emissions of hydrogen-ionizing photons. Among these
products are stripped stars (or helium stars), which have their envelopes stripped
from interactions with binary companions, leaving an exposed helium core. Previous
work has suggested these stripped stars can dominate the Lyman Continuum (LyC)
photon output of high-redshift, low-luminosity galaxies post-starburst. Other
sources of hard radiation in the early universe include zero-metallicity Population
iii stars, which may have similar spectral energy distribution (SED) properties
to galaxies with radiation dominated by stripped-star emissions. Here, we use
four metrics (the power-law exponent over wavelength intervals 240–500 Å, 600–900
Å, and 1200–2000 Å, and the ratio of total luminosity in FUV wavelengths to LyC
wavelengths) to compare the SEDs of simulated galaxies with only single-stellar
evolution, galaxies containing stripped stars, and galaxies containing Population
iii stars, with four different initial mass functions (IMFs). We find that stripped
stars significantly alter SEDs in the LyC range of galaxies at the epoch of reionization.
SEDs in galaxies with stripped stars have lower power-law indices in the LyC range
and lower FUV to LyC luminosity ratios. These differences in SEDs are present
at all considered luminosities (${M}_{\mathrm{UV}}\gt -15$, AB system), and are
most pronounced for lower-luminosity galaxies. Intrinsic SEDs as well as those
with interstellar medium absorption of galaxies with stripped stars and Population
iii stars are found to be distinct for all tested Population iii IMFs.
article_number: '5'
article_processing_charge: No
article_type: original
author:
- first_name: Elizabeth
full_name: Berzin, Elizabeth
last_name: Berzin
- first_name: Amy
full_name: Secunda, Amy
last_name: Secunda
- first_name: Renyue
full_name: Cen, Renyue
last_name: Cen
- first_name: Alexander
full_name: Menegas, Alexander
last_name: Menegas
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
citation:
ama: Berzin E, Secunda A, Cen R, Menegas A, Götberg YLL. Spectral signatures of
population III and envelope-stripped stars in galaxies at the epoch of reionization.
The Astrophysical Journal. 2021;918(1). doi:10.3847/1538-4357/ac0af6
apa: Berzin, E., Secunda, A., Cen, R., Menegas, A., & Götberg, Y. L. L. (2021).
Spectral signatures of population III and envelope-stripped stars in galaxies
at the epoch of reionization. The Astrophysical Journal. American Astronomical
Society. https://doi.org/10.3847/1538-4357/ac0af6
chicago: Berzin, Elizabeth, Amy Secunda, Renyue Cen, Alexander Menegas, and Ylva
Louise Linsdotter Götberg. “Spectral Signatures of Population III and Envelope-Stripped
Stars in Galaxies at the Epoch of Reionization.” The Astrophysical Journal.
American Astronomical Society, 2021. https://doi.org/10.3847/1538-4357/ac0af6.
ieee: E. Berzin, A. Secunda, R. Cen, A. Menegas, and Y. L. L. Götberg, “Spectral
signatures of population III and envelope-stripped stars in galaxies at the epoch
of reionization,” The Astrophysical Journal, vol. 918, no. 1. American
Astronomical Society, 2021.
ista: Berzin E, Secunda A, Cen R, Menegas A, Götberg YLL. 2021. Spectral signatures
of population III and envelope-stripped stars in galaxies at the epoch of reionization.
The Astrophysical Journal. 918(1), 5.
mla: Berzin, Elizabeth, et al. “Spectral Signatures of Population III and Envelope-Stripped
Stars in Galaxies at the Epoch of Reionization.” The Astrophysical Journal,
vol. 918, no. 1, 5, American Astronomical Society, 2021, doi:10.3847/1538-4357/ac0af6.
short: E. Berzin, A. Secunda, R. Cen, A. Menegas, Y.L.L. Götberg, The Astrophysical
Journal 918 (2021).
date_created: 2023-08-03T10:11:24Z
date_published: 2021-08-27T00:00:00Z
date_updated: 2023-08-21T11:44:50Z
day: '27'
doi: 10.3847/1538-4357/ac0af6
extern: '1'
external_id:
arxiv:
- '2102.08408'
intvolume: ' 918'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://doi.org/10.3847/1538-4357/ac0af6
month: '08'
oa: 1
oa_version: Published Version
publication: The Astrophysical Journal
publication_identifier:
eissn:
- 1538-4357
issn:
- 0004-637X
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Spectral signatures of population III and envelope-stripped stars in galaxies
at the epoch of reionization
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 918
year: '2021'
...
---
_id: '13458'
abstract:
- lang: eng
text: Most massive stars experience binary interactions in their lifetimes that
can alter both the surface and core structure of the stripped star with significant
effects on their ultimate fate as core-collapse supernovae. However, core-collapse
supernovae simulations to date have focused almost exclusively on the evolution
of single stars. We present a systematic simulation study of single and binary-stripped
stars with the same initial mass as candidates for core-collapse supernovae (11–21
M⊙). Generally, we find that binary-stripped stars core tend to have a smaller
compactness parameter, with a more prominent, deeper silicon/oxygen interface,
and explode preferentially to the corresponding single stars of the same initial
mass. Such a dichotomy of behavior between these two modes of evolution would
have important implications for supernovae statistics, including the final neutron
star masses, explosion energies, and nucleosynthetic yields. Binary-stripped remnants
are also well poised to populate the possible mass gap between the heaviest neutron
stars and the lightest black holes. Our work presents an improvement along two
fronts, as we self-consistently account for the pre-collapse stellar evolution
and the subsequent explosion outcome. Even so, our results emphasize the need
for more detailed stellar evolutionary models to capture the sensitive nature
of explosion outcome.
article_number: L5
article_processing_charge: No
article_type: original
author:
- first_name: David
full_name: Vartanyan, David
last_name: Vartanyan
- first_name: Eva
full_name: Laplace, Eva
last_name: Laplace
- first_name: Mathieu
full_name: Renzo, Mathieu
last_name: Renzo
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: Adam
full_name: Burrows, Adam
last_name: Burrows
- first_name: Selma E.
full_name: de Mink, Selma E.
last_name: de Mink
citation:
ama: Vartanyan D, Laplace E, Renzo M, Götberg YLL, Burrows A, de Mink SE. Binary-stripped
stars as core-collapse supernovae progenitors. The Astrophysical Journal Letters.
2021;916(1). doi:10.3847/2041-8213/ac0b42
apa: Vartanyan, D., Laplace, E., Renzo, M., Götberg, Y. L. L., Burrows, A., &
de Mink, S. E. (2021). Binary-stripped stars as core-collapse supernovae progenitors.
The Astrophysical Journal Letters. American Astronomical Society. https://doi.org/10.3847/2041-8213/ac0b42
chicago: Vartanyan, David, Eva Laplace, Mathieu Renzo, Ylva Louise Linsdotter Götberg,
Adam Burrows, and Selma E. de Mink. “Binary-Stripped Stars as Core-Collapse Supernovae
Progenitors.” The Astrophysical Journal Letters. American Astronomical
Society, 2021. https://doi.org/10.3847/2041-8213/ac0b42.
ieee: D. Vartanyan, E. Laplace, M. Renzo, Y. L. L. Götberg, A. Burrows, and S. E.
de Mink, “Binary-stripped stars as core-collapse supernovae progenitors,” The
Astrophysical Journal Letters, vol. 916, no. 1. American Astronomical Society,
2021.
ista: Vartanyan D, Laplace E, Renzo M, Götberg YLL, Burrows A, de Mink SE. 2021.
Binary-stripped stars as core-collapse supernovae progenitors. The Astrophysical
Journal Letters. 916(1), L5.
mla: Vartanyan, David, et al. “Binary-Stripped Stars as Core-Collapse Supernovae
Progenitors.” The Astrophysical Journal Letters, vol. 916, no. 1, L5, American
Astronomical Society, 2021, doi:10.3847/2041-8213/ac0b42.
short: D. Vartanyan, E. Laplace, M. Renzo, Y.L.L. Götberg, A. Burrows, S.E. de Mink,
The Astrophysical Journal Letters 916 (2021).
date_created: 2023-08-03T10:11:45Z
date_published: 2021-07-23T00:00:00Z
date_updated: 2023-08-21T11:37:48Z
day: '23'
doi: 10.3847/2041-8213/ac0b42
extern: '1'
external_id:
arxiv:
- '2104.03317'
intvolume: ' 916'
issue: '1'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2104.03317
month: '07'
oa: 1
oa_version: Preprint
publication: The Astrophysical Journal Letters
publication_identifier:
eissn:
- 2041-8213
issn:
- 2041-8205
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: Binary-stripped stars as core-collapse supernovae progenitors
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 916
year: '2021'
...
---
_id: '13459'
abstract:
- lang: eng
text: The B emission-line stars are rapid rotators that were probably spun up by
mass and angular momentum accretion through mass transfer in an interacting binary.
Mass transfer will strip the donor star of its envelope to create a small and
hot subdwarf remnant. Here we report on Hubble Space Telescope/STIS far-ultraviolet
spectroscopy of a sample of Be stars that reveals the presence of the hot sdO
companion through the calculation of cross-correlation functions of the observed
and model spectra. We clearly detect the spectral signature of the sdO star in
10 of the 13 stars in the sample, and the spectral signals indicate that the sdO
stars are hot, relatively faint, and slowly rotating as predicted by models. A
comparison of their temperatures and radii with evolutionary tracks indicates
that the sdO stars occupy the relatively long-lived, He-core burning stage. Only
1 of the 10 detections was a known binary prior to this investigation, which emphasizes
the difficulty of finding such Be+sdO binaries through optical spectroscopy. However,
these results and others indicate that many Be stars probably host hot subdwarf
companions.
article_number: '248'
article_processing_charge: No
article_type: original
author:
- first_name: Luqian
full_name: Wang, Luqian
last_name: Wang
- first_name: Douglas R.
full_name: Gies, Douglas R.
last_name: Gies
- first_name: Geraldine J.
full_name: Peters, Geraldine J.
last_name: Peters
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: S. Drew
full_name: Chojnowski, S. Drew
last_name: Chojnowski
- first_name: Kathryn V.
full_name: Lester, Kathryn V.
last_name: Lester
- first_name: Steve B.
full_name: Howell, Steve B.
last_name: Howell
citation:
ama: Wang L, Gies DR, Peters GJ, et al. The detection and characterization of Be+sdO
binaries from HST/STIS FUV spectroscopy. The Astronomical Journal. 2021;161(5).
doi:10.3847/1538-3881/abf144
apa: Wang, L., Gies, D. R., Peters, G. J., Götberg, Y. L. L., Chojnowski, S. D.,
Lester, K. V., & Howell, S. B. (2021). The detection and characterization
of Be+sdO binaries from HST/STIS FUV spectroscopy. The Astronomical Journal.
American Astronomical Society. https://doi.org/10.3847/1538-3881/abf144
chicago: Wang, Luqian, Douglas R. Gies, Geraldine J. Peters, Ylva Louise Linsdotter
Götberg, S. Drew Chojnowski, Kathryn V. Lester, and Steve B. Howell. “The Detection
and Characterization of Be+sdO Binaries from HST/STIS FUV Spectroscopy.” The
Astronomical Journal. American Astronomical Society, 2021. https://doi.org/10.3847/1538-3881/abf144.
ieee: L. Wang et al., “The detection and characterization of Be+sdO binaries
from HST/STIS FUV spectroscopy,” The Astronomical Journal, vol. 161, no.
5. American Astronomical Society, 2021.
ista: Wang L, Gies DR, Peters GJ, Götberg YLL, Chojnowski SD, Lester KV, Howell
SB. 2021. The detection and characterization of Be+sdO binaries from HST/STIS
FUV spectroscopy. The Astronomical Journal. 161(5), 248.
mla: Wang, Luqian, et al. “The Detection and Characterization of Be+sdO Binaries
from HST/STIS FUV Spectroscopy.” The Astronomical Journal, vol. 161, no.
5, 248, American Astronomical Society, 2021, doi:10.3847/1538-3881/abf144.
short: L. Wang, D.R. Gies, G.J. Peters, Y.L.L. Götberg, S.D. Chojnowski, K.V. Lester,
S.B. Howell, The Astronomical Journal 161 (2021).
date_created: 2023-08-03T10:11:57Z
date_published: 2021-05-04T00:00:00Z
date_updated: 2023-08-21T11:35:50Z
day: '04'
doi: 10.3847/1538-3881/abf144
extern: '1'
external_id:
arxiv:
- '2103.13642'
intvolume: ' 161'
issue: '5'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
- iso: eng
main_file_link:
- open_access: '1'
url: https://arxiv.org/abs/2103.13642
month: '05'
oa: 1
oa_version: Preprint
publication: The Astronomical Journal
publication_identifier:
eissn:
- 1538-3881
issn:
- 0004-6256
publication_status: published
publisher: American Astronomical Society
quality_controlled: '1'
scopus_import: '1'
status: public
title: The detection and characterization of Be+sdO binaries from HST/STIS FUV spectroscopy
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 161
year: '2021'
...
---
_id: '13457'
abstract:
- lang: eng
text: "Context. Observations of massive stars in open clusters younger than ∼8 Myr
have shown that a majority of them are in binary systems, most of which will interact
during their life. While these can be used as a proxy of the initial multiplicity
properties, studying populations of massive stars older than ∼20 Myr allows us
to probe the outcome of these interactions after a significant number of systems
have experienced mass and angular momentum transfer and may even have merged.\r\n\r\nAims.
Using multi-epoch integral-field spectroscopy, we aim to investigate the multiplicity
properties of the massive-star population in the dense core of the ∼40 Myr old
cluster NGC 330 in the Small Magellanic Cloud in order to search for possible
imprints of stellar evolution on the multiplicity properties.\r\n\r\nMethods.
We obtained six epochs of VLT/MUSE observations operated in wide-field mode with
the extended wavelength setup and supported by adaptive optics. We extracted spectra
and measured radial velocities for stars brighter than mF814W = 19. We identified
single-lined spectroscopic binaries through significant RV variability with a
peak-to-peak amplitude larger than 20 km s−1. We also identified double-lined
spectroscopic binaries, and quantified the observational biases for binary detection.
In particular, we took into account that binary systems with similar line strengths
are difficult to detect in our data set.\r\n\r\nResults. The observed spectroscopic
binary fraction among stars brighter than mF814W = 19 (approximately 5.5 M⊙ on
the main sequence) is fSBobs = 13.2 ± 2.0%. Considering period and mass ratio
ranges from log(P) = 0.15−3.5 (about 1.4 to 3160 d), q = 0.1−1.0, and a representative
set of orbital parameter distributions, we find a bias-corrected close binary
fraction of fcl = 34−7+8%. This fraction seems to decline for the fainter stars,
which indicates either that the close binary fraction drops in the B-type domain,
or that the period distribution becomes more heavily weighted toward longer orbital
periods. We further find that both fractions vary strongly in different regions
of the color-magnitude diagram, which corresponds to different evolutionary stages.
This probably reveals the imprint of the binary history of different groups of
stars. In particular, we find that the observed spectroscopic binary fraction
of Be stars (fSBobs = 2 ± 2%) is significantly lower than that of B-type stars
(fSBobs = 9 ± 2%).\r\n\r\nConclusions. We provide the first homogeneous radial
velocity study of a large sample of B-type stars at a low metallicity ([Fe/H]
≲ −1.0). The overall bias-corrected close binary fraction (log(P) < 3.5 d) of
the B-star population in NGC 330 is lower than the fraction reported for younger
Galactic and Large Magellanic Cloud clusters in previous works. More data are
needed, however, to establish whether the observed differences are caused by an
age or a metallicity effect."
article_number: A70
article_processing_charge: No
article_type: original
author:
- first_name: J.
full_name: Bodensteiner, J.
last_name: Bodensteiner
- first_name: H.
full_name: Sana, H.
last_name: Sana
- first_name: C.
full_name: Wang, C.
last_name: Wang
- first_name: N.
full_name: Langer, N.
last_name: Langer
- first_name: L.
full_name: Mahy, L.
last_name: Mahy
- first_name: G.
full_name: Banyard, G.
last_name: Banyard
- first_name: A.
full_name: de Koter, A.
last_name: de Koter
- first_name: S. E.
full_name: de Mink, S. E.
last_name: de Mink
- first_name: C. J.
full_name: Evans, C. J.
last_name: Evans
- first_name: Ylva Louise Linsdotter
full_name: Götberg, Ylva Louise Linsdotter
id: d0648d0c-0f64-11ee-a2e0-dd0faa2e4f7d
last_name: Götberg
orcid: 0000-0002-6960-6911
- first_name: L. R.
full_name: Patrick, L. R.
last_name: Patrick
- first_name: F. R. N.
full_name: Schneider, F. R. N.
last_name: Schneider
- first_name: F.
full_name: Tramper, F.
last_name: Tramper
citation:
ama: Bodensteiner J, Sana H, Wang C, et al. The young massive SMC cluster NGC 330
seen by MUSE. II. Multiplicity properties of the massive-star population. Astronomy
& Astrophysics. 2021;652. doi:10.1051/0004-6361/202140507
apa: Bodensteiner, J., Sana, H., Wang, C., Langer, N., Mahy, L., Banyard, G., …
Tramper, F. (2021). The young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity
properties of the massive-star population. Astronomy & Astrophysics.
EDP Sciences. https://doi.org/10.1051/0004-6361/202140507
chicago: Bodensteiner, J., H. Sana, C. Wang, N. Langer, L. Mahy, G. Banyard, A.
de Koter, et al. “The Young Massive SMC Cluster NGC 330 Seen by MUSE. II. Multiplicity
Properties of the Massive-Star Population.” Astronomy & Astrophysics.
EDP Sciences, 2021. https://doi.org/10.1051/0004-6361/202140507.
ieee: J. Bodensteiner et al., “The young massive SMC cluster NGC 330 seen
by MUSE. II. Multiplicity properties of the massive-star population,” Astronomy
& Astrophysics, vol. 652. EDP Sciences, 2021.
ista: Bodensteiner J, Sana H, Wang C, Langer N, Mahy L, Banyard G, de Koter A, de
Mink SE, Evans CJ, Götberg YLL, Patrick LR, Schneider FRN, Tramper F. 2021. The
young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity properties of
the massive-star population. Astronomy & Astrophysics. 652, A70.
mla: Bodensteiner, J., et al. “The Young Massive SMC Cluster NGC 330 Seen by MUSE.
II. Multiplicity Properties of the Massive-Star Population.” Astronomy &
Astrophysics, vol. 652, A70, EDP Sciences, 2021, doi:10.1051/0004-6361/202140507.
short: J. Bodensteiner, H. Sana, C. Wang, N. Langer, L. Mahy, G. Banyard, A. de
Koter, S.E. de Mink, C.J. Evans, Y.L.L. Götberg, L.R. Patrick, F.R.N. Schneider,
F. Tramper, Astronomy & Astrophysics 652 (2021).
date_created: 2023-08-03T10:11:34Z
date_published: 2021-08-12T00:00:00Z
date_updated: 2023-08-21T11:49:36Z
day: '12'
doi: 10.1051/0004-6361/202140507
extern: '1'
external_id:
arxiv:
- '2104.13409'
intvolume: ' 652'
keyword:
- Space and Planetary Science
- Astronomy and Astrophysics
language:
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main_file_link:
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url: https://doi.org/10.1051/0004-6361/202140507
month: '08'
oa: 1
oa_version: Published Version
publication: Astronomy & Astrophysics
publication_identifier:
eissn:
- 1432-0746
issn:
- 0004-6361
publication_status: published
publisher: EDP Sciences
quality_controlled: '1'
scopus_import: '1'
status: public
title: The young massive SMC cluster NGC 330 seen by MUSE. II. Multiplicity properties
of the massive-star population
type: journal_article
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 652
year: '2021'
...